// 0123456789ABCDEF0123456789ABCDEF0123456789ABCDEF0
// b-a DD DD DDD D DDD
// a AAAAAAAAA A A A A A AAA AAA A A
// b BBB BBB BBB BBB B B BBB
// a-b DD DD D D D D DDD DDD D D
CharRanges a = CharRanges.withRanges(new int[] {
0x03, 0x0C, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
0x1C, 0x1D, 0x1E, 0x21, 0x24, 0x27, 0x28, 0x29, 0x2A, 0x2B });
CharRanges b = CharRanges.withRanges(new int[] {
0x01, 0x04, 0x06, 0x09, 0x0B, 0x0E, 0x0F, 0x12, 0x1A, 0x1B,
0x1C, 0x1D, 0x21, 0x24 });
CharRanges empty = CharRanges.withMembers(new int[0]);
assertEquals(empty, empty.union(empty));
assertEquals(a, a.union(empty));
assertEquals(b, empty.union(b));
CharRanges aSb = a.difference(b);
assertEquals(
"[0x4-0x5 0x9-0xa 0x12 0x14 0x16 0x18 0x1e-0x20 0x24-0x26 0x28 0x2a]",
aSb.toString());
assertTrue(a.containsAll(aSb));
assertFalse(aSb.containsAll(a));
assertFalse(aSb.containsAll(b));
CharRanges bSa = b.difference(a);
assertEquals(
"[0x1-0x2 0xc-0xd 0xf-0x11 0x1a 0x21-0x23]",
bSa.toString());
assertTrue(b.containsAll(bSa));
assertFalse(bSa.containsAll(a));
assertFalse(bSa.containsAll(b));
// Check that a and b not changed by operation
assertEquals(
"[0x3-0xb 0x12 0x14 0x16 0x18 0x1c 0x1e-0x20 0x24-0x26 0x28 0x2a]",
a.toString());
assertEquals(
"[0x1-0x3 0x6-0x8 0xb-0xd 0xf-0x11 0x1a 0x1c 0x21-0x23]",
b.toString());
// 0 1 2 3 4 5 6 7 8 9 a b c d e f
// m: * * * * * * * * *
// s: * * * * * * * *
// d: * * * * *
CharRanges m = CharRanges.withMembers(0, 1, 2, 3, 6, 9, 0xa, 0xe, 0xf);
CharRanges s = CharRanges.withMembers(2, 5, 6, 7, 0xa, 0xb, 0xd, 0xe);
CharRanges d = m.difference(s);
assertEquals("[0x0-0x1 0x3 0x9 0xf]", d.toString());
assertTrue(m.containsAll(d));
assertFalse(d.containsAll(m));
assertFalse(d.containsAll(s));
assertFalse(s.containsAll(d));
assertTrue(d.containsAll(d));
}